Abstract
Os peroneum is an accessory ossicle located within the peroneus longus tendon. The painful os peroneum syndrome (POPS) results from a wide spectrum of conditions, including fractures, diastases, and other causes. POPS can result in tenosynovitis or discontinuity of the peroneus longus tendon with a clinical presentation of pain in the lateral aspect of the midfoot. Authors report a typical case of POPS, illustrating this entity through different imaging methods (radiographs, ultrasound, and magnetic resonance imaging). We emphasize the prevalence of this ossicle and discuss painful complications.
Highlights
Os peroneum is an accessory ossicle located within the substance of the peroneus longus tendon
Os peroneum is identified in 4.7–30% of normal feet [1] and is bipartite in approximately 30% of cases and unilateral in 40%
The accessory ossicle was identified within the peroneus longus tendon in the lateral aspect of the midfoot
Summary
Os peroneum is an accessory ossicle located within the substance of the peroneus longus tendon. Painful os peroneum syndrome (POPS) results from a wide spectrum of conditions, including fractures or diastases, and may result in tenosynovitis or even rupture of the peroneal tendon [1]. This syndrome should be considered in patients with pain in the lateral aspect of the midfoot. A positive physical examination reveals pain during palpation of the ossicle; it is overlooked. Imaging, such as radiographs, ultrasonography, and magnetic resonance imaging (MRI), plays an important role in the diagnosis and in the other associated conditions. This report aims to illustrate, using different imaging methods, a typical case of POPS, to raise the degree of suspicion of this entity and highlight possible related complications
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
